(19)
(11) EP 3 553 421 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
25.12.2019 Bulletin 2019/52

(43) Date of publication A2:
16.10.2019 Bulletin 2019/42

(21) Application number: 19162522.7

(22) Date of filing: 13.03.2019
(51) International Patent Classification (IPC): 
F25B 25/00(2006.01)
F25B 40/02(2006.01)
F25B 31/00(2006.01)
 F25B 40/00(2006.01)
F25B 40/06(2006.01)
F25B 23/00(2006.01)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 12.04.2018 US 201862656508 P
08.08.2018 US 201816058445

(71) Applicants:
  • Rolls-Royce Corporation
    Indianapolis, Indiana 46225 (US)
  • Rolls-Royce North American Technologies, Inc.
    Indianapolis, IN 46241 (US)

(72) Inventors:
  • Spangler, Brian
    Avon, IN Indiana 46123 (US)
  • Snyder, Douglas
    Carmel, IN Indiana 46074 (US)

(74) Representative: Rolls-Royce plc 
Intellectual Property Dept SinA-48 PO Box 31
Derby DE24 8BJ
Derby DE24 8BJ (GB)

   


(54) THERMAL ENERGY STORAGE AND HEAT REJECTION SYSTEM


(57) A cooling system is provided including a two-phase pump loop and a vapor compression system. The two-phase pump loop cools a thermal load with a first coolant. The vapor compression system is configured to circulate a second coolant. The vapor compression system includes a liquid vapor separator which separates the second coolant into a liquid portion and a gaseous portion. The liquid vapor separator is a thermal energy storage for the two-phase pump loop. A condenser of the two-phase pump loop transfers heat from the first coolant to the liquid portion of the second coolant in the liquid-vapor separator.







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